Floating Water Ball for Civil Building Accs 3 or 4" Outdoor Description: [OCCASIONS]: It is a replacement for traditional float, which can be applied to various high-level tank systems, swimming pools, water towers in industry and civil construction, etc. [Easy to install]: compact and practical, easy to install. Before installation, clean the pipeline of debris to prevent clogging. [MATERIAL]: made of high quality material, beautiful appearance, small size, practical, simple installation. [FUNCTION]: Automatic control, low supplementary water, full automatic water retention. [NOTE]: The float must be installed on the horizontal inlet. The water supply line must be fixed on a horizontal surface, and the water level control must be connected to the water inlet. Specifications: Product: water. Water inlet mode: upper inlet or side inlet (horizontal inlet). Application: automatic water replenishment for water tank, water, solar energy, aquarium breeding, etc. Material: Size Chart: 3 or 4" inner side: 13,8 cm x 8,8 cm or 5,43 inch x 3,46 inch 3 or 4" inner upper part: 12,5 cm x 5,6 cm or 4,92 inch x 2,20 inch 3 or 4 inch exterior: 13,8 cm x 11 cm or 5,43 inch x 4,33 inch 3 or 4 inch outer upper part: 14,6 cm x 5,6 cm or 5,75 inch x 2,20 inch 1 or 2" inner side: 13 cm x 8,3 cm or 5,12 inch x 3,27 inch 1 or 2" inner upper part: 12,5 cm x 5,6 cm or 4,92 inch x 2,20 inch 1 or 2" outside: 13 cm x 10,5 cm or 5,12 inch x 4,13 inch 1 or 2" outer top: 14,6 cm x 5,6 cm or 5,75 inch x 2,20 inch 1'' inner side: 15,2 cm x 9 cm or 5,98 inch x 3,54 inch 1'' top interior: 15.2cm x 5.6cm or 5.98 inch x 2.20 inch 1'' exterior: 15,2 cm x 11 cm or 5,98 inch x 4,33 inch 1'' outer top: 14,6 cm x 5,6 cm or 5,75 inch x 2,20 inch The package includes: 1 piece floating ball